FIRElink-NANO Air Sampling System INSTALLATION MANUAL
Page 2 of 21 FIRElink-NANO Air Sampling Detector – Installation and User Manual This manual details the installation of: FIRElink-NANO Air Sampling Detector If you have any queries regarding this product or its functionality please contact: Hochiki Europe (UK) Limited Grosvenor Road Gillingham Business Park Gillingham Kent ME8 0SA Tel: +44 (0) 1634 260133 Fax: +44 (0) 1634 260132 Web: http://www.hochikieurope.com Email: psupport@hochikieurope.com ©2010 Hochiki Europe (UK) Ltd. All rights reserved.
FIRElink-NANO Air Sampling Detector – Installation and User Manual Page 3 of 21 Table of Contents 1 2 3 4 5 6 7 8 Introduction .................................................................................................................................. 4 Outside the Detector..................................................................................................................... 5 Inside the Detector .........................................................................................
Page 4 of 21 1 FIRElink-NANO Air Sampling Detector – Installation and User Manual Introduction An aspirating smoke detector uses a fan to draw samples of air from a network of pipes with sampling holes positioned as if they were point smoke detectors.
FIRElink-NANO Air Sampling Detector – Installation and User Manual 2 Page 5 of 21 Outside the Detector Front Cover Securing Screw: Leave sufficient clearance below the detector to allow screwdriver access to this screw. Fire Alarm: Illuminates to indicate that the smoke level has passed the detector’s Fire 1 threshold, and the normally open FIRE relay contacts have closed.
Page 6 of 21 FIRElink-NANO Air Sampling Detector – Installation and User Manual NOTE: If the FAULT LED is illuminated but none of the additional LEDs are lit, it indicates a problem with the power supply if its Fault output is connected to the detector’s INPUT terminals and DIL switch 7 is set to OFF (its default position). Alternatively, this can happen if the INPUT terminals are left open circuit and DIL switch 7 is OFF.
FIRElink-NANO Air Sampling Detector – Installation and User Manual 3 Page 7 of 21 Inside the Detector Aspirating Fan Connector Lead: If this lead is broken or not connected, the fan will not turn and the detector will indicate a FLOW fault. Main PCB: No user-serviceable parts. The PCB is fixed in place with 5 off M3 x 6 screws. The detector must not be operated with any of the screws missing, as this may cause air leaks and unreliable operation.
Page 8 of 21 4 FIRElink-NANO Air Sampling Detector – Installation and User Manual Installation: Mechanical Cable Entries Pipe Entries 2x 20mm Conduit Holes, for example for 20mm packing glands. ¾” ABS Pipe. Drilling guides are provided for drilling two additional 2x 20mm holes in the top and 1x 20mm hole in the bottom if needed. Use a ¾” male to 25mm female adaptor if 25mm pipe is used. Note: Do not glue pipes into the detector, to allow for future removal.
FIRElink-NANO Air Sampling Detector – Installation and User Manual 5 Page 9 of 21 Installation: Printable A4 Drilling Template Upper clearance Remember to leave sufficient clearance above the detector for the cable glands and pipe inlet stubs. 3 x wall fixing screw holes Use M4.5 pan-head screws suitable for the wall to which the detector is to be fixed.
Page 10 of 21 6 FIRElink-NANO Air Sampling Detector – Installation and User Manual Installation: Electrical Power Supply Connections Connect “+24V” to PSU “+” terminal Connect “EARTH” to PSU mains earth terminal Connect “0V” to PSU “-” terminal Volt-free Relay Contacts NB: All relay contact positions are shown with the detector in the unpowered state. The FIRE and PRE ALARM relay contacts will change over when the unit enters the appropriate Alarm state.
FIRElink-NANO Air Sampling Detector – Installation and User Manual Page 11 of 21 In accordance with good wiring practice, keep cables and individual bared conductors as short as possible while allowing stress-relieving cable forming. Power cables should be current-rated at 1A or greater. RS-485 cable should be screened twisted pair, e.g. Belden 9841 24AWG. *NOTE The factory default setting of DIL switch 7 is OFF, so that the detector can monitor a power supply.
Page 12 of 21 7 FIRElink-NANO Air Sampling Detector – Installation and User Manual Installation: Pipework Sampling pipe ¾” pipe or 25mm pipe with a ¾” sleeve adapter. The maximum sampling pipe length is 50m. Fit an end cap with an appropriately-sized hole to optimize airflow through the pipe. This end cap hole is also a sampling hole. ® Use the PipeCAD pipe layout modelling software to plan pipe installations. For EN 54-20 compliance, indicated hole sensitivities must be better than, or equal to: 0.
FIRElink-NANO Air Sampling Detector – Installation and User Manual 8 Page 13 of 21 Configuration Configuration is carried out via the DIL switch mounted on the Main PCB.
Page 14 of 21 8.3 FIRElink-NANO Air Sampling Detector – Installation and User Manual Fixed Alarms Enabled Switches the artificial intelligence system off, locking sensitivity to that set at initial setup. This deactivates the dust filter monitoring system (not recommended). NOTE: Enabling this feature means that nuisance alarms due to fluctuations in ambient pollution levels become more likely. 8.4 Flow Limit Offset Sets the sensitivity of the airflow monitoring system.
FIRElink-NANO Air Sampling Detector – Installation and User Manual 9 Page 15 of 21 Commissioning Local standards and specification requirements must be adhered to.
Page 16 of 21 FIRElink-NANO Air Sampling Detector – Installation and User Manual 10 Maintenance Local standards and specification requirements must be adhered to. A typical maintenance procedure could entail the following steps: Check detector, wiring and pipework for damage T Check original design is still valid, e.g.
FIRElink-NANO Air Sampling Detector – Installation and User Manual Page 17 of 21 11 Troubleshooting 1.1 Nuisance Alarms This normally indicates that the detector is set at an Alarm Factor inappropriate for the installed environment. Increase the Alarm Factor to reduce sensitivity. The sensor chamber may be contaminated. Return the detector for factory cleaning and recalibration. 1.2 Detector Will Not Pass Smoke Test Detector may be in a FastLearn cycle. Check if green OK LED is on and flashing.
Page 18 of 21 1.4 FIRElink-NANO Air Sampling Detector – Installation and User Manual Long Transport Times: The sampling pipe may be too long, may have too many sampling holes/capillaries, or may have incorrectly sized holes. Check design with pipe modelling software. Sampling pipes, sampling holes and/or the exhaust pipe may be partially blocked by dust or debris. Clean pipework with dry compressed air and/or clean the sampling holes. Fan may be defective. Send detector for repair.
FIRElink-NANO Air Sampling Detector – Installation and User Manual Page 19 of 21 12 Optional Communications Card A communications card may be fitted inside the detector. Board Locating Post Detector Address DIL Switch The detector address is set using a reverse binary code, i.e. switch 1 is the least significant bit and switch 7 is the most significant bit. Switch 8 is not used. Set the address from 001 to 127 in order to identify the detector.
Page 20 of 21 FIRElink-NANO Air Sampling Detector – Installation and User Manual Direct connection of a PC to the Communications Card is via a 9 pin RS-232 interface on the Communications Card, using a null modem cable configuration, as shown in the diagram below: A connected PC may access the detector event memory to review previous or current events, such as detector Alarms or Faults.
FIRElink-NANO Air Sampling Detector – Installation and User Manual Page 21 of 21 13 Technical Data SELV Rating EN 60950 Class III Supply Voltage. 21.6v – 26.4v DC Current Consumption 350mA Electrical Safety Complies with EN 610190-1 Size (mm) 190w x 230h x 110d Weight 1.2kg Operating Temperature Range.
